STEEL FIBERS AS WEB REINFORCEMENT IN REINFORCED CONCRETE
The objective of this investigation was to determine the feasibility of replacing shear reinforcement (stirrups) with randomly distributed steel fibers for the prevention of diagonal tension (shear) failure in full-scale conventionally reinforced concrete beams. The following conclusions are based upon the use of steel fibers with deformed ends (Dramix) to replace stirrups: (1) Steel fibers can be used to replace stirrups in beams with no reduction in the ultimate design moment capacity; (2) Steel fibers increase the shear strength of concrete beams sufficiently to prevent catastrophic diagonal tension failure, while forcing the beam to fail in flexure; (3) ACI Code procedures can be used without modification to design reinforced concrete beams that contain steel fibers as shear reinforcement; (4) Low volume percentages of steel fibers have no effect upon the stiffness of full-scale beams; and (5) Steel fibers present a potentially more economic alternative to the use of stirrups in reinforced concrete design.
Army Construction Engineering Research LaboratoryP.O. Box 4005
Champaign, IL USA 61820
- Williamson, G R
- Publication Date: 1978-6
- Pagination: 15 p.
- TRT Terms: Beams; Concrete; Failure; Fiber reinforced concrete; Metal fibers; Reinforced concrete; Reinforcement (Engineering); Shear strength; Steel; Stiffness; Stirrups; Strength of materials; Tension
- Uncontrolled Terms: Concrete beams; Reinforced concrete beams
- Old TRIS Terms: Beams (Structural); Diagonal tension; Weather maps
- Subject Areas: Bridges and other structures; Geotechnology; Highways; Materials;
- Accession Number: 00185483
- Record Type: Publication
- Source Agency: National Technical Information Service
- Files: TRIS
- Created Date: Dec 29 1979 12:00AM